A PLC controller connector terminal
By introducing a combination of sliding and clamping mechanisms into the PLC controller connector terminals, the problem of poor contact caused by loose bolts was solved, and the stable clamping of wires and the reliability of the connection were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAYUAN (LINYI) ELECTRIC TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
Smart Images

Figure CN224288636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PLC controller wiring terminals, specifically a PLC controller connector terminal. Background Technology
[0002] PLC terminal blocks typically have input and output terminals, usually in the form of bolt clamping mechanisms. When the bolts are effectively tightened, the connection stability can be guaranteed. However, in existing technologies, bolts may loosen due to various reasons, resulting in unstable connection points and consequently poor contact. Utility Model Content
[0003] The purpose of this utility model is to provide a PLC controller connector terminal in order to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a PLC controller connector terminal, comprising a housing with a wire hole at the top, an installation groove formed at the lower part of the housing, the installation groove extending upward and communicating with the wire hole, a conductive sheet fixedly installed inside the installation groove, and clamping mechanisms for pressing the wires are installed at both ends of the conductive sheet inside the installation groove, and a sliding mechanism penetrating into the installation groove is slidably installed outside the housing, the outwardly moving sliding mechanism being used to release the clamping mechanism from the wires.
[0005] As a further embodiment of this utility model: the clamping mechanism includes a receiving groove formed inside the housing, one end of the receiving groove is connected to the inner wall of the mounting groove, a first metal spring is fixedly installed at the closed end of the inner wall of the receiving groove, the other end of the first metal spring is a free end, the free end of the first metal spring abuts against the vertical plate of the clamping plate, and the clamping plate is slidably installed in the inner cavity of the receiving groove.
[0006] As a further embodiment of this utility model: the clamping mechanism further includes an insertion hole opened on the horizontal plate portion of the clamping plate, the clamping plate passes through the interior of the conductive sheet, and the interior of the conductive sheet is provided with a strip groove for the horizontal plate portion of the clamping plate to slide.
[0007] As a further embodiment of this utility model: the clamping mechanism further includes a second metal spring sheet fixedly installed on the inner wall of the mounting groove. The end of the second metal spring sheet that is not connected to the inner wall of the mounting groove is a free end, and the free end of the second metal spring sheet abuts against the end of the clamping plate away from the receiving groove.
[0008] As a further embodiment of this utility model: the sliding mechanism includes an end located outside the housing, one end of the end is integrally formed with a sliding shaft that extends into the inner cavity of the mounting groove, the other end of the sliding shaft away from the end is integrally formed with an insulating plate that squeezes and limits the free end of the second metal spring, and a tool hole for inserting a tool is provided on the outer periphery of the end.
[0009] As a further improvement of this utility model, the interior of the housing is provided with a sliding hole for the sliding shaft to slide axially.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. By setting up a sliding mechanism and a clamping mechanism, the wire can be effectively clamped, and the problem of poor contact caused by loose bolts can be effectively avoided. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the shell structure of this utility model.
[0014] In the diagram: 1. Housing; 2. Mounting groove; 3. Conductive sheet; 4. Receiving groove; 5. Metal spring No. 1; 6. Clamping plate; 7. Insertion hole; 8. Metal spring No. 2; 9. Sliding shaft; 10. Insulating plate; 11. End; 12. Tool hole; 13. Strip groove; 14. Sliding hole. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figures 1-2 In this embodiment of the utility model, a PLC controller connector terminal includes a housing 1 with a wire hole at the top. An installation groove 2 is provided at the lower part of the interior of the housing 1. The installation groove 2 extends upward and communicates with the wire hole. A conductive sheet 3 is fixedly installed inside the installation groove 2. A clamping mechanism for pressing the wire is installed at both ends of the conductive sheet 3 inside the installation groove 2. A sliding mechanism that penetrates into the interior of the installation groove 2 is slidably installed on the outside of the housing 1. The outwardly moving sliding mechanism is used to release the clamping mechanism from the wire.
[0017] In this embodiment: First, when wiring, connect the input wire to the input wire hole and the output wire to the output wire hole. Then, use a flathead screwdriver to insert into the outer part of the sliding mechanism located in the housing 1, and then pull the sliding mechanism to move it. The moving sliding mechanism drives the clamping mechanism to move until the insertion hole 7 of the clamping mechanism is aligned with the wire hole. At this time, pass the wire through the insertion hole 7, and then remove the limiting force applied to the clamping mechanism. At this time, the clamping mechanism resets, and the clamping mechanism, together with the conductive plate 3, clamps the exposed conductor part of the wire. This method can avoid the problem of poor contact caused by loose bolt-type terminals.
[0018] Please refer to this carefully. Figure 1 and Figure 2 The clamping mechanism includes a receiving groove 4 inside the housing 1. One end of the receiving groove 4 is connected to the inner wall of the mounting groove 2. A first metal spring 5 is fixedly installed at the closed end of the inner wall of the receiving groove 4. The other end of the first metal spring 5 is a free end. The free end of the first metal spring 5 abuts against the vertical plate of the clamping plate 6. The clamping plate 6 is slidably installed in the inner cavity of the receiving groove 4. The clamping mechanism also includes an insertion hole 7 on the horizontal plate of the clamping plate 6. The clamping plate 6 passes through the interior of the conductive sheet 3. The interior of the conductive sheet 3 has a strip groove 13 for sliding of the horizontal plate of the clamping plate 6. The clamping mechanism also includes a second metal spring 8 fixedly installed on the inner wall of the mounting groove 2. The end of the second metal spring 8 that is not connected to the inner wall of the mounting groove 2 is a free end. The free end of the second metal spring 8 abuts against the end of the clamping plate 6 away from the receiving groove 4.
[0019] In this embodiment: when the sliding mechanism moves outward, it presses the free end of the second metal spring 8. At this time, the second metal spring 8 is deformed by pressure and no longer presses the horizontal plate end of the clamping plate 6. Therefore, the first metal spring 5 with less elastic force resets and pushes the clamping plate 6 to reset until the insertion hole 7 and the wire hole are aligned in the vertical direction. At this time, the wire is passed through the wire hole and inserted into the insertion hole. After completion, the force applied to the sliding mechanism is removed. At this time, the sliding mechanism no longer restricts the second metal spring 8, and the second metal spring 8 can push the clamping plate 6 to reset. The reset clamping plate 6, together with the conductive plate 3, clamps the wire. This method does not require the use of bolts to fasten the wire, which can effectively avoid poor contact problems caused by loose bolts.
[0020] Please refer to the figure carefully. The sliding mechanism includes an end 11 located outside the housing 1. One end of the end 11 is integrally formed with a sliding shaft 9 that extends into the inner cavity of the mounting groove 2. The end of the sliding shaft 9 away from the end 11 is integrally formed with an insulating plate 10 that squeezes and limits the free end of the second metal spring 8. A tool hole 12 for inserting a tool is opened on the outer periphery of the end 11. A sliding hole 14 for axial sliding of the sliding shaft 9 is opened inside the housing 1.
[0021] In this embodiment: Before pulling the sliding mechanism, insert the head of a flathead screwdriver into the tool hole 12, and then pry the end 11 outward. The moving end 11 drives the sliding shaft 9 to move outward, and the sliding shaft 9 can drive the insulating plate 10 to move outward. At this time, the insulating plate 10 can squeeze the free end of the second metal spring 8, so that the second metal spring 8 no longer applies the limiting squeezing force to the clamping plate 6. When the pulling force is removed, the second metal spring 8 can be reset.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A PLC controller connector terminal, comprising a housing (1) with a wire hole on the top, characterized in that, The housing (1) has an installation groove (2) at the bottom inside. The installation groove (2) extends upward and is connected to the wire hole. A conductive sheet (3) is fixedly installed inside the installation groove (2). A clamping mechanism for pressing the wire is installed at both ends of the conductive sheet (3) inside the installation groove (2). A sliding mechanism that penetrates into the installation groove (2) is slidably installed on the outside of the housing (1). The sliding mechanism that moves outward is used to release the clamping mechanism from the wire.
2. The PLC controller connector terminal according to claim 1, characterized in that, The clamping mechanism includes a receiving groove (4) opened inside the housing (1). One end of the receiving groove (4) is connected to the inner wall of the mounting groove (2). A first metal spring (5) is fixedly installed at the closed end of the inner wall of the receiving groove (4). The other end of the first metal spring (5) is a free end. The free end of the first metal spring (5) abuts against the vertical plate of the clamping plate (6). The clamping plate (6) is slidably installed in the inner cavity of the receiving groove (4).
3. A PLC controller connector terminal according to claim 2, characterized in that, The clamping mechanism also includes an insertion hole (7) on the horizontal plate portion of the clamping plate (6), the clamping plate (6) passes through the interior of the conductive sheet (3), and the interior of the conductive sheet (3) is provided with a strip groove (13) for the horizontal plate portion of the clamping plate (6) to slide.
4. A PLC controller connector terminal according to claim 3, characterized in that, The clamping mechanism also includes a second metal spring (8) fixedly installed on the inner wall of the mounting groove (2). The end of the second metal spring (8) that is not connected to the inner wall of the mounting groove (2) is a free end. The free end of the second metal spring (8) abuts against the end of the clamping plate (6) away from the receiving groove (4).
5. A PLC controller connector terminal according to claim 4, characterized in that, The sliding mechanism includes an end (11) located outside the housing (1). One end of the end (11) is integrally formed with a sliding shaft (9) that extends into the inner cavity of the mounting groove (2). The other end of the sliding shaft (9) away from the end (11) is integrally formed with an insulating plate (10) that compresses and limits the free end of the second metal spring (8). The outer periphery of the end (11) is provided with a tool hole (12) for inserting a tool.
6. A PLC controller connector terminal according to claim 5, characterized in that, The housing (1) has a sliding hole (14) inside for the sliding shaft (9) to slide axially.